1. Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur, Malaysia
2. Leather Process Technology, Tannery Division, CSIR – Central Leather Research Institute (CLRI), Chennai, India
3. Department of Nanoscience and Technology, Alagappa University, Karaikudi, India
4. Department of Physics, Sathyabama Institute of Science and technology, Chennai, India
5. Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang, Malaysia
6. Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
7. Department of Advanced Materials Science and Engineering, Hanseo University, Seosan-si, Chungnam, Korea